Composition fos detonators



a 1) (a l imam.

7' s 1 iyrs mu CHCtLES MILTON STINE, OF CHESTER. ZENNSYLVANIA, AsilIGNQR, BY MESI TE ASSIGH KEI'ITS. TO E, I. DU PONY m: NEMGURS AND COMPANY, A CGRPGRATION 0F EELA COMPOSZTKGH FOR BETGNAT it may connnrn Be it linow'n that l HARLES MILTON S'rlxn, of Chester, in the county of Delau re. and is the Statsof Pennsylvania have invon did a certain new and uscful. improvement in llompositions for Dctonators, and do hereby declare that the following is a full, clear. and exact description thereof.-

The object of my invention has boon to provide an improved compwition for detonators and which shall have among others the advantages of having a high velocity of detonation and of being capable of detonating violently and with a sullicient power to cause the detonation of explosives not easily detonated.

To such ends my invention consists in the dctonator composition, that is to say dill'crout types of blasting caps hereinafter specifiled. I have disoovercd that. certain hemi or pseudo cclluloses such 11s the sccds of certain tropical palms known as vegetable ivory, when suitably treated. have a high velocity of detonation which especially fits them for use as initial ignitcrs ofmany types and particularly for use, in caps and detonatingcompositions, the caps being for instance blasting caps such as are used for th detonation of dynamite charges.

I have discovered for example that nitratcd ivory nut mixed with such primary detonating compounds as mercury fuhninate or load azid and then pressed with an inverted capsule into shells which are used for blasting caps forms a powerful detonatiug composition, and that when the composition is ignited, as by means of a safcty fuse, it

dctonams violently and withsuilicieut power to cause lhc detonation of dynamite. A suitablc mixture is 90 parts of iuhninatc of morz-ury and 10 parts of nitratcd ivory nut. or a mixture of 90 parts of load arid and 19 parts nitrated ivory nut is oqually powcrful.

Not only is such nitratcd ivory nut useful in tho primary detonation composition but I havc discovorw'l that tho nitratcd ivory nut. cithcr alonc or mixcd with an oxidizing? agent such as potassium chlorate. may ho used tho main chm-go mi The blasting cap or electric, blasting cap. with a primary dcronating composition such as those above doscribcd, or fuhninato of mcrcury or load amid without the nitratcd ivory nut, or other Specification of Letters ZPatPnL Application filed Bccem'usr ample o3? rush a llVifi charge of a blast ng cop, anew grams of it ivory nut y be loaded. in the usual manner into a mpjL-sr cl such asis used for blasting caps pressed in place by means of high prcssurs? six grains of a 90-19 mixture of fuhninats of mercury and potassium chlorats may then be placed on top of the nitratcd ivory nut and pressed into place at high pressure; the charge may then he covered with a perforated thimblc or invertsc. capsule if dcsircd. The blasting caps sis-formed may be ignited by the flame from a safety fuse in the usual Way and will detonate. with great violence,

Nitrated ivory nut may also be used in blasting caps in combination with organic intro-compounds, cither mixed with the nitro'compound or pressed into the cap sac-ll in 'a soparatc charge. As an example of the usoof nitratcd ivory nut mixed with an on ganic intro-compound, 10 grains of a mixture of equal parts of trinitrotolucne and nitratcd ivory nut may be loaded in the usual manner into a copper shell and packed at high pressure. Seven (7) grains of fulmiuatc of mercury are then placed on top of the pressed charge and also pressed into place at high pressure, with a perforated capsule placcd on top (if the primer. As an example of the use of nitratcd ivory nut in combination with an organic nil.ro-conipound, hut not dircctly mixed with it, a cap may be loaded with 10 grains of trinitrotoluono or picric acid and primed with a mixture of 90 parts load azid and 10 parts nitratcd ivory nut. the main ohargo and primer being pressed cithcr at the same time or separately.

/Vhile 1' havo given specific examples of the use of nit-rated ivory nut in detonator compositions, it is to be understood that my invention is not limitcd to any particular dctoual'or composition nor to any specific mcthods of USP in blasting or other caps. but that I desire to claim in the broadest manncr thc use of nit'ratcd vcgctablo ivory and similar hcmi and pseudo cclluloscs in dctonator compositions.

l. A dctonai'mchargrc containing nitratcd homi-ccllulosc and a primcr'coutaiumg a primary dctonating compound.

2. A dammit? @hargu coti'taining nitmted lYOif nun 5mg a pmmmcoutzumng 4 prlnmry 7 dqmg illpOllIid.

J blastmq can char e continuum n1- a L: L"

4i, Tn-szniwailaiosa and a primer contam- & rimary (aw/(making compound.

A biasting cap charge ,contajning niivory nut and. a, pril ner oonmimng a detmmi-ing compound. J5. 2L de'wnixt-ing charge comprising :1 main 0i nitmied ivm'y nut, and primer 'ning a primary detonating compound 0QSSS1IHRB ahlombs.

6v 1; bia 'zing cap chargza comprising a main charge csnmining nitmted ivory nut primer containing mercury ful'minute.

and pozussiuln chlorzxic. 20 8. A blasting on vhm'gv vmnpriflug: :1 11min charge c nmining 15 park of nitnnvd ivory nut, and n pz'lnm' Containing (3 parts of a ww wv; mixtuw of fuhu'nmtv of mvrclu'y and pnmssium chlmutu. 25

In testimony Yhaf i vluim the foregoing 1 have here-mum set my hand.

(RABIES MIUIUX STIXEC.

Witnesses HENRY EVA} 0x132,

CLIFFORD E. 

